package cy.security.demo.web.controller;

import cy.security.demo.dto.FileInfo;
import org.apache.commons.io.IOUtils;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.multipart.MultipartFile;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.*;

/**
 * @Author: ciyuan
 * @Date: 2019/5/13 1:32
 */
@RestController
@RequestMapping("/file")
public class FileController {

    String folder = "D:\\work\\cy-security\\cy-security-demo\\src\\main\\java\\cy\\security\\demo\\web\\controller";

    @PostMapping("/upload")
    public FileInfo upload(MultipartFile file) throws IOException {

        System.out.println(file.getName());
        System.out.println(file.getOriginalFilename());
        System.out.println(file.getSize());


        File localFile = new File(folder, System.currentTimeMillis() + ".txt");
        file.transferTo(localFile);

        return new FileInfo(localFile.getAbsolutePath());
    }

    @GetMapping("/{id}")
    public void download(@PathVariable String id,
                         HttpServletRequest request,
                         HttpServletResponse response) {
        try(InputStream inputStream = new FileInputStream(new File(folder, id + ".txt"));
            OutputStream outputStream = response.getOutputStream()) {
            response.setContentType("application/x-download");
            response.addHeader("Content-Disposition", "attachment;filename=test.txt");
            IOUtils.copy(inputStream, outputStream);
            outputStream.flush();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}
